Persecute [Ninth Edition] SPA Artista de la sangre Arctic Aven gets +1/+1 as

Arctic Aven gets +1/+1 as long as you control a Plains

"We come bearing the word of Avacyn and the Lunarch Council

Set: Onslaught Type: Creature — Human Wizard Uncommon Cost: {3}{U}{U} {U}

Set: Mirrodin Besieged Type: Artifact Creature — Horror Rare Cost: {5} Psychosis Crawler's power and toughness are each equal to the number of cards in your hand

The leonin attempted war

Persecute [Ninth Edition] SPA Artista de la sangre Arctic Aven gets +1/+1 asSet: Ninth Edition Type: Sorcery Rare Cost: {2}{B}{B} Choose a color. Target player reveals their hand and discards all cards of that color. "Of all the tyrannies on humane kind The worst is that which persecutes the mind." John Dryden, "The Hind and the Panther"